Happy Birthday:
Celebrate Becky & Milly Rosso's Best Twin Styles Over the Years

Whether you love the Rosso twins from their roles on The Suite Life of Zack and Cody or from their all-girl music group The Rosso Sisters, with their older sisters, chances are you've been obsessed with Becky and Milly Rosso's matching styles at some point. In honor of the girls' 21st birthday today, we're taking a look back on why we've loved them so much!

During their early days on the red carpet, the actresses rocked some seriously cute coordinating fashions. Whether they tried out identical looks or swapped contrasting elements of their outfits, they always made twice the style statement. Now that they're older, the twins have really defined their own trendy styles.

Click through the gallery to see Becky and Milly's twinning styles from over the years, and see just how much they've grown up. Then, make sure to wish them a happy birthday by commenting below!